Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Jamestown can be reffered to in order to estimate when it's a good idea to plant turnips.

Planting Calendar for Turnips

Frost tolerance for turnips:	Not tolerant of frost.
When to plant:	After the last frost.

You should not plant turnips until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant turnips in Jamestown is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant turnips and expect a good harvest is probably August. If you wait any later than that and your turnips may not have a chance to fully mature. You can get started a little bit earlier by starting your turnips indoors.

Last Frost Date

On average all chance of frost has passed is on May 15 in Jamestown. It might get as low as -30°F during the coldest months of winter.

Since the USDA zone info for Jamestown is an average the actual date of last frost will vary from year to year. Since half of the time in Jamestown you get a frost after May 15 be ready to cover your turnips if you have a surprise late frost.

USDA Zone Info for Jamestown

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Jamestown

You may be interested in your other planting guides for Jamestown.